99 Ford Escort Randomly Stalls When Stopping

[hakachukai]

I've got a 99 Ford Escort Se 4 door sedan, Automatic trans with about 140k miles on it that randomly stalls when stopping at a red light. It is random and rare, but it does happen.

When it stalls, it sounds and feels like something is mechanically stopping the engine, like maybe it's not disconnecting from the automatic transmission. I can hear the engine working hard as the car slows down, it jumps around in the engine compartment a little bit, then dies as the car comes to a complete stop.

Then I start the car back up, everything is back to normal and I drive away with no further problems for the rest of the trip.

What can cause this? Does this car have a TCC clutch in the torque converter? Is it maybe randomly being falsely triggered to apply at low speed?

[hakachukai]

According to All Data, pin 54 (GRY/WHT) on the PCM goes to pin 7 on the transmission plug and is supposed to control the TCC clutch using posative voltage.

I guess I'll hook an LED up to it and drive around for a while. If the car stalls again I'll quickly look at the light to see if the TCC clutch is being told to turn on.

If not, it could be a sticking solenoid.

Has anyone else ever had this problem?